Drop support for Python 3.8

.changes/unreleased/Breaking Changes-20241016-175527.yaml

@@ -0,0 +1,6 @@
+kind: Breaking Changes
+body: Drop support for Python 3.8
+time: 2024-10-16T17:55:27.844499-04:00
+custom:
+  Author: mikealfare
+  Issue: "161"

.github/workflows/integration-tests.yml

@@ -82,7 +82,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     services:
       postgres:
@@ -148,7 +148,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-22.04, macos-12]
-        python-version: ["3.8", "3.12"]
+        python-version: ["3.9", "3.12"]
     steps:
       - name: "Check out repository"
         uses: actions/checkout@v4

.github/workflows/unit-tests.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
       - name: Check out repository

.pre-commit-config.yaml

@@ -23,7 +23,6 @@ repos:
     -   id: black
         args:
         -   --line-length=99
-        -   --target-version=py38
         -   --target-version=py39
         -   --target-version=py310
         -   --target-version=py311

docker/Dockerfile

@@ -1,7 +1,7 @@
 # this image gets published to GHCR for production use
 ARG py_version=3.12.4
 
-FROM python:$py_version-slim-bullseye as base
+FROM python:$py_version-slim-bullseye AS base
 
 RUN apt-get update \
   && apt-get dist-upgrade -y \
@@ -25,7 +25,7 @@ ENV LANG=C.UTF-8
 RUN python -m pip install --upgrade "pip==24.0" "setuptools==69.2.0" "wheel==0.43.0" --no-cache-dir
 
 
-FROM base as dbt-postgres
+FROM base AS dbt-postgres
 
 ARG commit_ref=main
 

docker/README.md

@@ -24,20 +24,19 @@ docker build --tag <your_image_name> \
 ```
 
 ### Examples:
-To build an image named "my-dbt" that supports Snowflake using the latest releases:
+To build an image named "my-dbt" that supports Postgres using the latest releases:
 ```shell
-cd dbt-core/docker
 docker build --tag my-dbt --target dbt-postgres .
 ```
 
-To build an image named "my-other-dbt" that supports Snowflake using the adapter version 1.0.0b1:
+To build an image named "my-other-dbt" that supports Postgres using the adapter version 1.8.0:
 ```shell
 cd dbt-core/docker
 docker build \
   --tag my-other-dbt \
   --target dbt-postgres \
-  --build-arg commit_ref=v1.0.0b1 \
- .
+  --build-arg commit_ref=v1.8.0 \
+  .
 ```
 
 ## Running an image in a container:

docker/dev.Dockerfile

@@ -1,47 +1,47 @@
 # this image does not get published, it is intended for local development only, see `Makefile` for usage
-FROM ubuntu:24.04 as base
+FROM ubuntu:24.04 AS base
 
 # prevent python installation from asking for time zone region
 ARG DEBIAN_FRONTEND=noninteractive
 
 # add python repository
 RUN apt-get update \
-  && apt-get install -y software-properties-common=0.99.22.9 \
-  && add-apt-repository -y ppa:deadsnakes/ppa \
-  && apt-get clean \
-  && rm -rf \
-    /var/lib/apt/lists/* \
-    /tmp/* \
-    /var/tmp/*
+    && apt-get install -y software-properties-common=0.99.48 \
+    && add-apt-repository -y ppa:deadsnakes/ppa \
+    && apt-get clean \
+    && rm -rf \
+        /var/lib/apt/lists/* \
+        /tmp/* \
+        /var/tmp/*
 
 # install python
 RUN apt-get update \
-  && apt-get install -y --no-install-recommends \
-    build-essential=12.9ubuntu3 \
-    git-all=1:2.34.1-1ubuntu1.10 \
-    libpq-dev=14.11-0ubuntu0.22.04.1 \
-    python3.8=3.8.19-1+jammy1 \
-    python3.8-dev=3.8.19-1+jammy1 \
-    python3.8-distutils=3.8.19-1+jammy1 \
-    python3.8-venv=3.8.19-1+jammy1 \
-    python3-pip=22.0.2+dfsg-1ubuntu0.4 \
-    python3-wheel=0.37.1-2ubuntu0.22.04.1 \
-  && apt-get clean \
-  && rm -rf \
-    /var/lib/apt/lists/* \
-    /tmp/* \
-    /var/tmp/*
+    && apt-get install -y --no-install-recommends \
+        build-essential=12.10ubuntu1 \
+        git-all=1:2.43.0-1ubuntu7.1 \
+        libpq-dev=16.4-0ubuntu0.24.04.2 \
+        python3.9=3.9.20-1+noble1 \
+        python3.9-dev=3.9.20-1+noble1 \
+        python3.9-distutils=3.9.20-1+noble1 \
+        python3.9-venv=3.9.20-1+noble1 \
+        python3-pip=24.0+dfsg-1ubuntu1 \
+        python3-wheel=0.42.0-2 \
+    && apt-get clean \
+    && rm -rf \
+        /var/lib/apt/lists/* \
+        /tmp/* \
+        /var/tmp/*
 
 # update the default system interpreter to the newly installed version
-RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 1
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1
 
 # install python dependencies
-RUN python3 -m pip install --upgrade --no-cache-dir "hatch==1.9.1"
+RUN python -m pip install --upgrade "hatch==1.13.0" --no-cache-dir --compile
 
 
-FROM base as dbt-postgres-dev
+FROM base AS dbt-postgres-dev
 
-HEALTHCHECK CMD python3 --version || exit 1
+HEALTHCHECK CMD python --version || exit 1
 
 # send stdout/stderr to terminal
 ENV PYTHONUNBUFFERED=1
@@ -50,5 +50,5 @@ ENV PYTHONUNBUFFERED=1
 WORKDIR /opt/code
 VOLUME /opt/code
 
-# create a virtual environment
-RUN python3 -m venv /opt/venv
+# setup hatch virtual envs
+RUN hatch config set dirs.env.virtual ".hatch"

pyproject.toml

@@ -4,7 +4,7 @@ name = "dbt-postgres"
 description = "The set of adapter protocols and base functionality that supports integration with dbt-core"
 readme = "README.md"
 keywords = ["dbt", "adapter", "adapters", "database", "elt", "dbt-core", "dbt Core", "dbt Cloud", "dbt Labs", "postgres"]
-requires-python = ">=3.8.0"
+requires-python = ">=3.9.0"
 authors = [
     { name = "dbt Labs", email = "[email protected]" },
 ]
@@ -17,7 +17,6 @@ classifiers = [
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX :: Linux",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -58,8 +57,7 @@ dependencies = [
     "dbt-common @ git+https://github.com/dbt-labs/dbt-common.git",
     "dbt-tests-adapter @ git+https://github.com/dbt-labs/dbt-adapters.git#subdirectory=dbt-tests-adapter",
     "dbt-core @ git+https://github.com/dbt-labs/dbt-core.git#subdirectory=core",
-    'pre-commit==3.7.0;python_version>="3.9"',
-    'pre-commit==3.5.0;python_version=="3.8"',
+    "pre-commit==3.7.0",
     "freezegun",
     "pytest",
     "pytest-dotenv",